my 1st antenna was the so called 8 legged spider using #12 wire.. twas tracking like 140-150nm from my location including all approaching aircraft. Am less than 5 miles from the airport. Now i made another one..the same design but this time im using #14 wire .. what i observed was.. i hardly track planes from 50nm and approaches. BUT it can track distant aircraft like 160-180nm.. Wondering whats the cause of being blind on near aircraft.. Hoping for your kind response regarding.
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